Home / 17,865.12-26,789.91-7,869.66

Finding the Fourth Proportional to 17,865.12, 26,789.91 and 7,869.66

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Solution

The fourth proportional to 17,865.12, 26,789.91 and 7,869.66 is: 11,801.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.12 : 26,789.91 = 7,869.66 : x
  2. Step 2: Convert to fraction form
    17,865.12/26,789.91 = 7,869.66/x
  3. Step 3: Cross multiply
    17,865.12x = 26,789.91 × 7,869.66
  4. Step 4: Simplify right side
    17,865.12x = 210,827,483.13
  5. Step 5: Solve for x
    x = 210,827,483.13/17,865.12
  6. Step 6: Final answer
    x = 11,801.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.